Shower curtain



FIG. 1 is a front elevational view of a shower curtain showing my new design; the rear view being identical thereto;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view of a modified form of the shower curtain shown in FIG. 1; the rear view being identical thereto;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a front elevational view of a modified form of the shower curtain shown in FIG. 1; the rear view being identical thereto;

FIG. 6 is a side elevational view thereof; and

FIG. 7 is a perspective view thereof; the broken line showing of environmental structure forms no part of the claimed design. 

The ornamental design for a shower curtain, substantially as shown and described. 